CN205069343U - A shield assembly and response charging system for toroidal coil - Google Patents
A shield assembly and response charging system for toroidal coil Download PDFInfo
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- CN205069343U CN205069343U CN201520358596.2U CN201520358596U CN205069343U CN 205069343 U CN205069343 U CN 205069343U CN 201520358596 U CN201520358596 U CN 201520358596U CN 205069343 U CN205069343 U CN 205069343U
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/147—Alloys characterised by their composition
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/02—Casings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/288—Shielding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
- H01F27/366—Electric or magnetic shields or screens made of ferromagnetic material
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
- H01F38/14—Inductive couplings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
- H02J7/0044—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction specially adapted for holding portable devices containing batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a shield assembly and response charging system for toroidal coil. Shield assembly includes: profile to the outside of toroidal coil lateral wall, profile to the inside of toroidal coil inside wall, and the top of profile to the toroidal coil top, wherein shield assembly's top is connected insidely and outside. The problem that this disclosed one embodiment was solved provides an improvement technical scheme who guides the flux into from transmitting coil receiving coil in responding to the power transfer system. Provide profile flux guide shield assembly guided the flux into receiving coil from transmitting coil improvement technical scheme on through transmitting coil in the influence electricity can transmitting system and receiving coil arbitrary one or two according to the use of this disclosed embodiment.
Description
Technical field
Embodiment described herein relates to electromagnetism electric energy transmission system, and shields the system and method for solenoid in particular to the induction electric energy transmission in order to improve.
Background technology
Portable electric appts can comprise one or more battery that may need often to charge.This equipment can comprise electric automobile, phone, smart phone, panel computer, notebook computer, wearable device, navigator, sports equipment, health analysis equipment, medical data equipment, position tracking device, servicing unit, household electrical appliance, external input equipment, remote control equipment, etc.
Some batteries can by accepting the induction electric energy that be provided by induction electric energy reflector and wireless charging.Such as, the battery powered electronics being configured to accept induction electric energy can be placed on be suitable for produce induction electric energy reflector near.In such systems, become magnetic flux when the transmitting coil in reflector can produce, it induction can cause electric current in receiving coil in electronic equipment.Received current can be used for the electric charge of boost charge battery by electronic equipment.
In many examples, induction electric energy reflector can transmitting ratio induction electric energy receiver receive more electric energy.In other words, the part of the magnetic flux produced by reflector may not by receiving coil, but can by and other assemblies in victim emitter and/or receiver.The electric energy of these wastes often dissipates as less desirable heat.
Therefore, a kind of improvement opportunity scheme of flux being guided into receiving coil in inductive electric energy transmission system from transmitting coil may be needed now.
Utility model content
An object of an embodiment of the present disclosure is to provide a kind of improvement opportunity scheme of flux being guided into receiving coil in inductive electric energy transmission system from transmitting coil.
Embodiment described herein can relate to, comprises or take the form of toroidal screening arrangement.According to an embodiment, provide a kind of for toroidal screening arrangement, described screening arrangement at least comprises the outside of profile to loop coil lateral wall, profile is to the inside of loop coil madial wall, and profile is to the top at loop coil top, the top of wherein said screening arrangement connects inside and outside.
According to a kind of execution mode, loop coil is included in the first shell.
According to a kind of execution mode, screening arrangement can comprise soft magnetic material.Such as, screening arrangement can comprise iron, ferrosilite, iron cobalt, MnZn, nickel or nickel zinc.
In more examples, the material being elected to be screening arrangement can have relatively high permeability.In other examples, screening arrangement can comprise plastics, glass or composite material.Screening arrangement also can comprise metal dust.
According to a kind of execution mode, the outside of screening arrangement comprises multiple individual extension.And screening arrangement comprises the packing material be placed between individual extension further.
According to a kind of execution mode, the inside of screening arrangement comprises multiple individual extension.And screening arrangement comprises the packing material be placed between individual extension further.
According to a kind of execution mode, described screening arrangement comprises the tack coat be placed between screening arrangement and loop coil further.Tack coat can be hot activation film, and in some instances, tack coat is made up of dopant material, and in some instances, dopant material comprises metal dust.
Other embodiments described herein can relate to, comprise or take the form of induction charging system, comprise: electronic equipment, described electronic equipment has rechargeable battery, the receiving coil associated with battery electricity, and profile is positioned at the first screening arrangement at least two surfaces of receiving coil, described screening arrangement is defined for the receiving area of assembling from the receiving coil of its magnetic flux passed through.Many examples also comprise induction charging equipment, described induction charging equipment comprises the shell of the interface surface had for receiving electronic equipment, to be in shell and the transmitting coil be positioned at below interface surface, and profile is positioned at the secondary shielding device at least two surfaces of transmitting coil, described secondary shielding device is defined for the emitting area assembled from the receiving coil of its magnetic flux passed through, and wherein emitting area can take the direction towards interface surface.In many examples, when electronic equipment is placed on interface surface, the direction towards emitting area can be taked in receiving area.
Embodiment described herein can relate to, comprises or take a kind of method manufacturing the profile screening arrangement of solenoid, described method at least comprises following operation: form the shielding sheet with multiple extension, shielding sheet is placed on the first surface of solenoid, and each its profile that makes of folding above-mentioned multiple extension is to the surface of solenoid.
Method described herein may further include and is placed in hot activation film to form shielded coil assembly parts between screening arrangement and solenoid, and heats shielded coil assembly parts subsequently with activation heat activated membrane.
Other embodiments may further include and are placed between adjacent extension by packing material.
Other embodiments can comprise on the mould that profile screening arrangement and solenoid assembly parts to be press-fitted to and to have selected shape (such as conical).
It is the improvement opportunity scheme any one or two by the transmitting coil in induction electric energy emission system and receiving coil providing profile flux guide screening arrangement flux guided into receiving coil from transmitting coil according to a technique effect of an embodiment of the present disclosure.
Accompanying drawing explanation
Referring now to the representative embodiment illustrated in accompanying drawing.The description object being to be understood that below does not lie in and disclosure is limited to a kind of preferred embodiment.On the contrary, object be to cover that the spirit that may be included in described embodiment is interior with scope, possibility by appended claims, amendment and equivalent.
Figure 1A describes the front perspective view of example inductive electric energy transmission system in non-pair configuration.
Figure 1B describes the front perspective view of example inductive electric energy transmission system in pair configuration.
Fig. 1 C describes the side viewgraph of cross-section of inductive electric energy transmission system along line 1C-1C of Figure 1B.
Fig. 2 A describes the top perspective that example does not shield solenoid.
The bottom perspective view that the example solenoid that Fig. 2 B describes Fig. 2 A shields on three sides.
Fig. 2 C describes the top perspective of the example solenoid of Fig. 2 A.
Fig. 3 A describes the example side viewgraph of cross-section obtained along the line 2-2 of Fig. 2 C, the outer surface of display profile screening arrangement at least part of gap joint solenoid.
Fig. 3 B describes the example side viewgraph of cross-section obtained along the line 2-2 of Fig. 2 C, and display profile screening arrangement is via the outer surface of hot activation film at least part of gap joint solenoid.
Fig. 3 C describes the example side cross section of shielded coil, and at least part of gap of display profile screening arrangement engages the outer surface of coil, and arbitrary curve followed by screening arrangement and coil.
The example top view of die-cut screening arrangement before Fig. 4 A is described in and is formed on solenoid.
The die-cut example top view with being separated screening arrangement before Fig. 4 B is described in and is formed on solenoid.
Fig. 5 describes a kind of example operational flow figure profile screening arrangement being applied to the method for solenoid.
Fig. 6 describes a kind of example operational flow figure profile screening arrangement being applied to the method for solenoid.
In different figure, use that is identical or like reference numerals indicates similar, relevant or identical project.
Embodiment
Embodiment described herein can relate to, comprises or take the form of flux being guided into improving one's methods of receiving coil and system in inductive electric energy transmission system from transmitting coil.
Inductive electric energy transmission system typically comprises the induction electric energy emitting module launching electric energy and the induction electric energy receiving unit receiving electric energy.Induction electric energy receiving unit can be included in portable electric appts, to provide the convenient means of the one or more internal cell of wireless charging.Induction electric energy emitting module can be included in the charging device that associates with portable electric appts.Exemplary portable electronic equipment can comprise media player, media storage device, personal digital assistant, panel computer, mobile phone, notebook computer, smart phone, writing pen, gps sensor, remote control equipment, wearable device, electric automobile, household electrical appliance, position tracking device, medical data equipment, health analysis equipment, health monitoring unit, sports equipment, servicing unit, etc.Exemplary charge equipment can comprise docking station, stands, folder, plug, pad, annex etc.
In many examples, battery powered electronic equipment (" accessory ") can be placed on electric energy transmitter or surface (" docking station ").In such systems, when the solenoid (" transmitting coil ") in docking station can produce, power transformation magnetic flux (" transmitting electric energy ") causes electric current with solenoid (" the receiving coil ") internal induction in accessory.In other examples, transmitting coil can produce static electromagnetic field and the position physically can moving, change or otherwise change it to produce the electromagnetic flux of spatial variations, thus cause electric current at receiving coil internal induction.
Accessory can use received current carry out the electric charge (" reception electric energy ") of boost charge battery or electric energy be provided to the operating assembly associated with accessory.In other words, when accessory is placed on docking station, electric energy can be wirelessly transmitted to receiving coil via the transmitting coil of accessory by docking station.
But in many examples, the more electric energy of docking station frequent transmitting ratio fitment receiver, to ensure needed for fitment receiver and the electric energy of desired amount.Words sentence is talked about, and the part of magnetic flux that transmitting coil produces not by the receiving coil of accessory, thus can not be responded to wherein and causes electric current.Such as, transmitting coil and receiving coil are typically placed along Sharing Center's axle and are taked plane-parallel direction with towards each other.In this arrangement, the part of the flux that transmitting coil produces can from transmitting coil below or side pass through, enter in the shell of docking station, or enter other parts of receiver.These untapped flux can by and other electronic building bricks in victim emitter and/or receiver, and can to dissipate as less desirable heat.
In many cases, the heating of accessory and/or docking station may cause the damage of electronic building brick or shell, reduce the working life of one or both equipment, dangerous after equipment use a period of time may be caused, or user's waiting facilities may be forced to cool and show inconvenient or depressing.
Therefore, embodiment described herein relates to, comprises and take any one or two by the transmitting coil in induction electric energy emission system and receiving coil to provide profile flux guide screening arrangement flux is guided into the form of improving one's methods of receiving coil from transmitting coil.
The typical portable electronic devices of one or more solenoids comprised for induction electric energy transmission can comprise plane screen shielding apparatus, such as ferrite sheet, is launched or flux that receiving coil produces to prevent electronic building brick.Such as, induction electric energy reflector can comprise at transmitting coil and can ferrite lamella between function circuit, the interference suffering to prevent circuit to cause because flux passes through, interference or heating.In other examples, accessory can comprise receiving coil and can ferrite lamella between function circuit (guide flux away from) can function circuit protecting similarly.
Embodiment described herein relates to the flux guide screening arrangement of solenoid, and its profile axially aligns the concentrated flux path of receiving coil to coil to provide to point to.Such as, as mentioned above, transmitting coil and receiving coil can be placed along Sharing Center's axle and take plane-parallel direction with towards each other.Embodiment described herein, around not forming profile screening arrangement towards coil surface each other, makes concentrated flux path be limited between the front face surface of transmitting and receiving coil.
In a kind of embodiment of ring-shaped emission coil with rectangular cross section, profile screening arrangement can have three defining surfaces.The first surface of screening arrangement can profile to the madial wall of ring-shaped emission coil.The second surface of screening arrangement can profile to the lateral wall of ring-shaped emission coil.3rd surface of screening arrangement can profile to the rear surface of ring-shaped emission coil.Like this, three in four sides of the rectangular cross section of ring-shaped emission coil can be shielded by profile screening arrangement.As the result of profile screening arrangement, the magnetic flux dispersed from the madial wall of ring-shaped emission coil, lateral wall and rear surface can be absorbed by profile screening arrangement and be redirected and leave screening arrangement with the front surface along transmitting coil.
In many embodiments, profile screening arrangement can be made up of ferromagnetic material such as iron or ferroalloy such as iron cobalt, iron nickel or steel.In more embodiments, can other materials be used, such as, there is the material of relatively high permeability.In further more embodiments, select the material being used for profile screening arrangement can be doped polymer.Such as, polymer can doped with iron powder or ferroalloy powder.These and other materials can be selected to think that flux that coil produces provides the path of lower magnetic resistance for profile screening arrangement.Therefore, flux is guided to disperse from the front of coil.
More embodiments can comprise the profile screening arrangement being formed and engage the region between a body coil with gap.Such as, can to comprise a more than coiling with circular cross section stacking for transmitting coil.In these embodiments, profile screening arrangement can be formed in the void space that limits between stacked coils with gap.Like this, profile screening arrangement can engage coil more closely, and the flux for coil generation provides the path of lower magnetic resistance.Therefore, flux is guided to disperse from the front of coil.
The thickness of profile screening arrangement can change along with embodiment.In many examples, thickness can be selected according to the saturation point of material and the magnetic field intensity of permeability and coil generation at least in part.Such as, in certain embodiments, high permeability may be expect.Be appreciated that the material with high permeability typically has low saturation point.In these embodiments, the thickness of profile screening arrangement can depend on the maximum field expecting to come from coil.In more embodiments, profile screening arrangement can by composite material, and such as layered material is formed.Each layer can adopt different permeabilities, different thickness or can be made up of different materials.
In more embodiments, one or more tack coat can be used to be pasted by profile screening arrangement or be bonded to coil.Such as, some embodiment can comprise the hot activation film boning and be placed between profile screening arrangement and coil.In process of production, can heat contours screening arrangement, film and coil so that profile screening arrangement is for good and all bonded to coil.In other embodiments, binding agent can be the binding agent of solidified liquid binding agent or any other type.
In more embodiments, binding agent can be made up of polymeric material, and it can doped with the alloy with high permeability.Such as, hot activation film can doped with iron powder, ferroalloy powder or any other high permeability alloy.Like this, the flux that binding agent self can produce for coil provides the path of low magnetic resistance.
In many embodiments, profile screening arrangement also can be applied to multiple surfaces of receiving coil.Like this, the flux that profile screening arrangement can produce for transmitting coil provides the path of low magnetic resistance, makes the flux of greater density pass through receiving coil.
In many embodiments, receiving coil can be included in portable electric appts and transmitting coil can be included in charging device.In these embodiments, the transmitting and receiving coil of screening arrangement can be positioned at their respective shells, and the right-side-out opened wide is placed.Like this, when portable electric appts and charging device placement located adjacent one another, profile screening arrangement can boot up the flux that transmitting coil produces in the side of receiving coil.
Figure 1A describes the front perspective view of example inductive electric energy transmission system in non-pair configuration.Example embodiment shows a kind of induction electric energy and launches docking station, and it is configured to couple electrical energy to receive accessory such as portable electric appts or wearable accessory to being also wirelessly delivered to induction electric energy.
Wearable accessory, such as, describe in Figure 1A, can be configured to provide healthy relevant information or data, such as, but be not limited to heart rate data, blood pressure data, temperature data, oxygen horizontal data, diet/nutritional information, medical alert, healthy relevant suggestion or information or other healthy relevant data.The information that health can be correlated with by wearable accessory is sent to independent electronic equipment alternatively, such as tablet computing device, phone, personal digital assistant, computer etc.
Wearable accessory can comprise the coupled connection mechanism connected for the bar or band pinioning user.Such as, intelligent watch can comprise and is bonded to band in user's wrist or bar.In another example, wearable health-care aid can comprise the bar connected around user's chest, or wearable health-care aid can be suitable for and be linked with or use together with necklace alternatively.In more example, on another part that wearable device can be bonded to user's body or in it.In these and other embodiments, bar, with, to be linked with or other fixed mechanisms can comprise one or more electronic building brick or the transducer of or wire communication wireless with accessory.Such as, the band being bonded to intelligent watch can comprise one or more transducer, boosting battery, camera or any other suitable electronic building brick.
In many examples, wearable device, such as, describe in Figure 1A, can comprise to couple with memory or the processor communicated, one or more communication interface, output equipment such as display and loud speaker, and one or more input equipment such as button, rotating disk, microphone or touch-controlling interface.Communication interface can provide communication equipment and the electronic communication between any external communication network, equipment or platform, such as, but be not limited to wave point, blue tooth interface, near field communication interface, infrared interface, USB interface, Wi-Fi interface, TCP/IP interface, network communication interface or any conventional communication interface.Except communication, wearable device can provide the information about time, health, state, or outside connects or communication equipment and/or the software that performs on devices, message, video, operational order etc. (and aforementioned middle any one can be received from external equipment).
Although the system 100 of example describes a kind of watch in Figure 1A, any electronic equipment can be suitable for launching docking station from induction electric energy and receive induction electric energy.Such as, suitable electronic equipment can be to receive any portable of induction electric energy or half portable electric appts, and suitable docking unit can be can any portable or half portable expansion docking station (dockingstation) of wireless transmission induction electric energy.
Therefore, system 100 can comprise induction electric energy reflector 102 and induction electric energy receiver 202.Induction electric energy reflector 102 and induction electric energy receiver 202 can eachly comprise respectively by electronic building brick loading shell wherein.In many examples, and as described, induction electric energy receiver 202 may be greater than induction electric energy reflector 102, although this configuration is not required.
In example embodiment, induction electric energy reflector 102 can be connected to power supply by power line 106, such as AC Power supply socket.In other embodiments, induction electric energy reflector 102 can be battery-powered.In more examples, induction electric energy reflector 102 can comprise power line 106 and inner or external cell.Similarly, although the embodiment display illustrated has the power line 106 of the shell being couple to induction electric energy reflector 102, power line 106 also can be connected by any suitable means.Such as, power line 106 can be removable and can comprise size and be applicable to loading connector in the aperture or socket opened wide in induction electric energy reflector 102 shell.
As shown, induction electric energy receiver 202 can comprise lower surface 208, its can with interface surface 108 interface of induction electric energy reflector 102, to align or other modes contact.Like this, induction electric energy receiver 202 and induction electric energy reflector 102 can be relative to each other placement.In certain embodiments, interface surface 108 can given shape configuration, and the complementary shape of itself and induction electric energy receiver 202 is matched, such as, shown in Figure 1B.Interface surface 108 can comprise the concave following selected curve.The basal surface 208 of induction electric energy receiver 202 can take the convex shape following identical with interface surface 108 or substantially similar curve.In other examples, interface surface 108 can be flat substantially.
Additionally or alternatively, induction electric energy transmitter device and receiver apparatus 102,202 can use one or more registration mechanism relative to each other to place.As an example, one or more magnetic device can be included in transmitter device and/or receiver apparatus 102, can be used for transmitter device and receiver apparatus are relative to each other alignd in 202.In another example, the one or more actuators in transmitter device and/or receiver apparatus 102 can be used for alignment transmitter device and receiver apparatus.Such as, and in Still another example, alignment feature, the protrusion in transmitter device and receiver apparatus shell and corresponding depression, can be used for alignment transmitter device and receiver apparatus.The design of interface surface or configuration, one or more registration mechanism and one or more alignment feature can variously to combinationally use individually or with it.
Fig. 1 C describes the side viewgraph of cross-section obtained along the line 1C-1C of Figure 1B, shows the example inductive electric energy transmission system of aligned configuration, comprises the example system figure of induction electric energy receiver 202 and induction electric energy reflector 102.As shown, the interface surface of the basal surface 208 contact induction electrical energy transmitter 102 of induction electric energy receiver 202.
If part is about described by Figure 1A, induction electric energy receiver 202 can comprise one or more electronic building brick in its shell, such as processor 204 and receiving coil 212.Receiving coil 212 can have one or more winding and can receive the electric energy from induction electric energy reflector 102.Therefore, the electric energy of reception can be sent to processor 204 by receiving coil 212.Processor 204 can use the electric energy of reception to perform or coordinate one or more function of induction electric energy receiver 202 and/or the electric charge of supplementary battery 206.
Induction electric energy receiver 202 also can comprise other electronic building bricks being couple to processor 204.Such as, induction electric energy receiver 202 can comprise memory 210, display 216, one or more input-output apparatus 218 such as button, power feel interface, touch interface, microphone and/or loud speaker, communication interface for wired and/or radio communication, etc.
Induction electric energy receiver 202 also can comprise processor 204 and be used for one or more transducers of collecting ring environment information, user profile or any other type information.Environmental sensor can comprise meteorological sensor such as baroceptor, humidity sensor, particle counte, temperature sensor, moisture transducer, Ultraviolet sensor, infrared sensor, air-flow and wind sensor, rain sensor, accumulation transducer, etc.User profile transducer can comprise healthy relevant transducer, such as skin conductance sensor, body temperature trans, pulse oximetry sensor, pre ure tra ducer, etc.
Induction electric energy reflector 102 also can comprise the transmitting coil 112 with one or more winding.Transmitting coil 112 can launch electric energy to induction electric energy receiver 202.Transmitting coil 112 can be couple to the processor 104 controlling transmitting coil 112 at least in part.Such as, in certain embodiments, processor 104 can use power signal to drive transmitting coil 112 to cause specific voltage at transmitting coil 112 internal induction.Transmitting coil 112 and receiving coil 212 all can be shielded by profile screening arrangement 114 and 214 respectively.
One or more aspects that processor 104 can control or periodically adjustment is applied to the power signal of transmitting coil 112.Such as, processor 104 can change the operating frequency of power signal.In some instances, the operating frequency of power signal can increase thus increase the electric energy received by receiving coil 212.In addition, processor 104 can be used for performing or coordinate other functions of induction electric energy reflector 102.
As mentioned above, when receiving coil 212 aligns along common axle with transmitting coil 112, the delivery of electrical energy efficiency between induction electric energy reflector 102 and induction electric energy receiver 202 can be optimized.In many examples, slight unjustified of induction electric energy reflector 102 and induction electric energy receiver 202, such as, caused by manufacture deviation, transmitting coil 112 may be caused unjustified with the essence of receiving coil 212.In many examples, unjustifiedly may reduce delivery of electrical energy efficiency substantially again.Preferably, induction electric energy reflector 102 and induction electric energy receiver 202 align along common axle 300, as is shown in fig. 1 c.
Fig. 2 A describes the top perspective that example does not shield transmitting coil 112, and it can comprise in the embodiment described in Figures IA-1 C.As shown, coil 112 comprises the several windings be made of such as copper by electric conductor example.In other embodiments, each winding can by several strands independently line form.In many examples, winding can annular provide substantially, has one or more layers winding.As described, three layer of four winding provides 12 solenoids enclosed altogether.In many embodiments, the wire of coil 112 can leave coil in the same side.In example embodiment, coil 112 has rectangular cross section, although this configuration is not required.
Three sides that Fig. 2 B and Fig. 2 C is described in coil respectively cover bottom perspective view and the top perspective of Fig. 2 A example solenoid of profile screening arrangement 114.As described, profile screening arrangement 114 can have three defining surfaces.The first surface of profile screening arrangement 114 can profile to the lateral wall of coil 112, be described as the outward flange of coil 112.First surface can divide 114a to limit by multiple folded extension.Extension 114a can place equably around the outward flange of coil 112.
The second surface of profile screening arrangement 114 can profile to the madial wall of coil 112.Second surface can divide 114b to limit by multiple folded extension.The same with extension 114a, extension 114b can place equably around the madial wall of coil 112.
3rd surface of profile screening arrangement 114 can profile to the rear surface of coil 112.3rd surface can stop collar 114c.In many examples, as described, extension 114a, 114b can extend from ring 114c, the bending respective sidewall extremely limiting the winding layers of coil 112 at an angle with profile.Like this, profile screening arrangement 114 can be formed by single unified material.Although single piece may be optional or applicable for each embodiment described herein.Such as, extension 114a, 114b can be attached to by any suitable means or otherwise be bonded to ring 114c.Such as, in certain embodiments, extension 114a, 114b can welding, bondings or be otherwise attached to ring 114c in independently manufacture process.
Like this, three in four sides of the rectangular cross section of coil 112 are shielded by screening arrangement 114.As mentioned above, as the result of profile screening arrangement 114, the magnetic flux dispersed from the madial wall of ring-shaped emission coil, lateral wall and rear surface can be absorbed by profile screening arrangement and be redirected and leave screening arrangement with the front surface along transmitting coil.In other words, flux can about the direction described in Fig. 2 B upwards, from the unscreened of coil 112 and the upper surface exposed disperse.Similarly, flux can be downward about the direction described in Fig. 2 C.
Although be shown as separation, extension 114a, 114b can be connected by any suitable means, welding or otherwise be attached to adjacent extension 114a, 114b.In more embodiments, packing material can be filled in the region between adjacent extensions divides.Packing material can be the material with high permeability.Such as, packing material can be the binding agent comprising ferromagnetic alloy.
Although extension 114a and 114b example are substantial rectangular, this configuration is not required, and other shapes are suitable for various embodiment described herein and relative embodiment.
In more embodiments, profile screening arrangement 114 can be formed by welding, bonding or three stand-alone assemblies (namely outer shroud, inner ring, packing ring) be otherwise bonded together.
Fig. 3 A describes the example side viewgraph of cross-section obtained along the line 2-2 of Fig. 2 C, the outer surface of the profile screening arrangement 114 of display Fig. 2 C gap joint coil 112 at least partly.Such as, can to comprise a more than coiling with circular cross section as shown stacking for coil 112.In these embodiments, profile screening arrangement 114 can be formed in the void space that limits between stacked coils with gap.Like this, profile screening arrangement 114 can engage coil 112 more closely along ring 114c and extension 114a, 114b, thus the flux produced for coil provides the path of low magnetic resistance.Therefore, flux is guided to disperse from the front of coil 112.In other words, flux can be downward about the direction described in Fig. 3 A.
Fig. 3 B describes the example side viewgraph of cross-section obtained along the line 2-2 of Fig. 2 C, and display profile screening arrangement 114 is via the outer surface of hot activation film 116 gap joint coil 112 at least partly.As described, profile screening arrangement 114 can use one or more layers binding agent, such as hot activation film 116, pastes or is adhered to coil 112.Hot activation film 116 binding agent can be placed between profile screening arrangement 114 and coil 112.In process of production, can heat contours screening arrangement 114, hot activation film 116 and coil 112 so that profile screening arrangement 114 is for good and all bonded to coil 112.In other embodiments, binding agent can be the binding agent of solidified liquid binding agent or any other type.
In more embodiments, hot activation film 116 can be made up of polymeric material, and it can doped with the alloy with high permeability.Such as, hot activation film 116 can doped with iron powder, ferroalloy powder or any other high permeability alloy.Like this, the flux that hot activation film 116 self can produce for coil provides the path of low magnetic resistance.
In other embodiments, profile screening arrangement 114 and coil 112 can be press-fitted the profile with arbitrary shape in the fabrication process.Such as, as described in Fig. 3 C, coil 112 and profile screening arrangement 114 are along acclivity.Be appreciated that the slope cross section as example can represent the cross section of the toroidal part of circular cone.Although as example extends formation copl along the slope of rising, coil 112 and profile screening arrangement 114 can be formed to follow arbitrary shape.In many examples, coil 112 and profile screening arrangement 114 can form the flexibility of the shell of the induction electric energy receiver 202 of equipment of following such as shown in Figure 1A-1C.Such as, coil 112 and profile screening arrangement 114 can form the flexibility following basal surface 208 as shown in Figure 1A.
The example top view of die-cut screening arrangement before Fig. 4 A is described in and is formed on solenoid.In certain embodiments, profile screening arrangement 114 initially can be formed cutting to break through in journey.Cut and break through the pre-contour shape that journey can limit profile screening arrangement 114, such as, by limiting each size of extension 114a and 114b.
The die-cut example top view with being separated screening arrangement before Fig. 4 B is described in and is formed on solenoid.In these embodiments, profile screening arrangement 114 can each assembly of electrically separated one-tenth to prevent or to stop exciting of eddy current in shielding material.In the shown embodiment, otch can be manufactured in ring 114c, ring 114c is separated with extension 114b with all extension 114a.
Fig. 5 describes a kind of example operational flow figure profile screening arrangement being applied to the method for solenoid.Method can 502 start, wherein can a die-cut material to form screening arrangement.504, hot activation film can be applied to die-cut masked segment.In some embodiments, hot activation film can be applied before the blanking process of 502.Next 506, hot activation film and die-cut screening arrangement can be press-fitted on coil.In same or operation subsequently, each of extension can fold around coil.Next 508, can to assembly parts heating with activation heat activated membrane.In some embodiments, heating can make selection melt or softening for the material component of die-cut screening arrangement, make screening arrangement to flow with each circle occupying coil between void space.Like this, screening arrangement can become integrated with coil interstitial type.
Fig. 6 describes a kind of example operational flow figure profile screening arrangement being applied to the method for solenoid.The method can comprise the operation similar with the method that describes in Fig. 5.Such as, method can 602 start, wherein can a die-cut material to form screening arrangement.604, hot activation film can be applied to die-cut masked segment.606, hot activation film and die-cut screening arrangement can be press-fitted on coil.After this, 608, can to assembly parts heating with activation heat activated membrane.Finally, 610, coil and screening arrangement can be press-fitted in outline mold, and coil and screening arrangement can be formed arbitrary shape by it, as above such as with reference to described by figure 3C.
Current open in, disclosed method can realize as by the instruction of device-readable or software kit.In addition, be to be understood that the particular order of step in disclosed method or level are the examples of Sample Method.In other embodiments, can the particular order of step or level in rearranging method, be retained in disclosed theme simultaneously.Subsidiary claim to a method book presents the element of various step with sample order, and not necessarily intends the particular order that is confined to present or level.
Description above employs specific term for illustrative purposes, to provide the thorough understanding of described embodiment.But, obvious for those skilled in the art, do not need specific details to put into practice described embodiment.Therefore, describe before particular described here and present in order to the purpose of illustration and description.Their objects are not exhaustive or embodiment are restricted to disclosed exact form.Obvious for those of ordinary skill in the art, many modifications and variations in view of instruction be above possible.
Claims (17)
1. for a toroidal screening arrangement, it is characterized in that, described screening arrangement comprises:
Profile is to the outside of loop coil lateral wall;
Profile is to the inside of loop coil madial wall; And
Profile is to the top at loop coil top;
Wherein, the top of described screening arrangement connects inside and outside.
2. screening arrangement according to claim 1, is characterized in that, loop coil is included in the first shell.
3. screening arrangement according to claim 1, is characterized in that, screening arrangement comprises soft magnetic material.
4. screening arrangement according to claim 3, is characterized in that, screening arrangement comprises iron, ferrosilite, iron cobalt, MnZn, nickel or nickel zinc.
5. screening arrangement according to claim 1, is characterized in that, screening arrangement comprises plastics, glass or composite material.
6. screening arrangement according to claim 5, is characterized in that, screening arrangement comprises metal dust.
7. screening arrangement according to claim 1, is characterized in that, outside comprises multiple individual extension.
8. screening arrangement according to claim 7, is characterized in that, described screening arrangement comprises the packing material be placed between individual extension further.
9. screening arrangement according to claim 1, is characterized in that, inside comprises multiple individual extension.
10. screening arrangement according to claim 9, is characterized in that, described screening arrangement comprises the packing material be placed between individual extension further.
11. screening arrangements according to claim 1, is characterized in that, described screening arrangement comprises the tack coat be placed between screening arrangement and loop coil further.
12. screening arrangements according to claim 11, is characterized in that, tack coat comprises hot activation film.
13. screening arrangements according to claim 11, it is characterized in that, tack coat is made up of dopant material.
14. screening arrangements according to claim 13, it is characterized in that, dopant material comprises metal dust.
15. 1 kinds of induction charging systems, is characterized in that, described induction charging system comprises:
Electronic equipment, described electronic equipment comprises:
Rechargeable battery;
The receiving coil associated with battery electricity; And
Profile is positioned at the first screening arrangement at least two surfaces of receiving coil, and described first screening arrangement is defined for the receiving area of assembling from the receiving coil of its magnetic flux passed through.
16. induction charging systems according to claim 15, is characterized in that, described induction charging system comprises further:
Induction charging equipment, described induction charging equipment comprises:
Comprise the shell of the interface surface for receiving electronic equipment;
To be in shell and the transmitting coil be positioned at below interface surface; And
Profile is positioned at the secondary shielding device at least two surfaces of transmitting coil, and described secondary shielding device is defined for the emitting area assembled from the receiving coil of its magnetic flux passed through;
Wherein:
Emitting area takes the direction towards interface surface.
17. induction charging systems according to claim 16, is characterized in that, when interface surface receiving electronic equipment, the direction towards emitting area is taked in receiving area.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/310,694 US9460846B2 (en) | 2014-06-20 | 2014-06-20 | Methods for forming shield materials onto inductive coils |
| US14/310,694 | 2014-06-20 |
Publications (1)
| Publication Number | Publication Date |
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| CN205069343U true CN205069343U (en) | 2016-03-02 |
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| CN201520358596.2U Active CN205069343U (en) | 2014-06-20 | 2015-05-29 | A shield assembly and response charging system for toroidal coil |
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| Country | Link |
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| US (3) | US9460846B2 (en) |
| CN (1) | CN205069343U (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108199493A (en) * | 2017-12-05 | 2018-06-22 | 宁波微鹅电子科技有限公司 | A kind of electromagnetic screen, wireless charging transmitting terminal, receiving terminal and system |
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Also Published As
| Publication number | Publication date |
|---|---|
| US20150371768A1 (en) | 2015-12-24 |
| US9460846B2 (en) | 2016-10-04 |
| US10043612B2 (en) | 2018-08-07 |
| US20180330867A1 (en) | 2018-11-15 |
| US20170011840A1 (en) | 2017-01-12 |
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